#!/usr/bin/env bash
# Smoke tests for mini_calc. Exit 0 only when add/sub/mul/div are correct.
set -euo pipefail
ROOT="$(cd "$(dirname "$0")/.." && pwd)"
CALC="$ROOT/calc"
fail=0

expect() {
  local op=$1 a=$2 b=$3 want=$4
  local got
  got="$("$CALC" "$op" "$a" "$b")"
  if [[ "$got" != "$want" ]]; then
    echo "FAIL: $op $a $b → got '$got' want '$want'"
    fail=1
  else
    echo "ok: $op $a $b → $got"
  fi
}

expect add 2 3 5
expect sub 9 4 5
expect mul 3 4 12
expect div 8 2 4

if [[ "$fail" -ne 0 ]]; then
  echo "smoke: FAILED"
  exit 1
fi
echo "smoke: PASSED"
exit 0